1.	A geometrical representation of a map is called a ______?______.
		A.	coordinate plane	B.	chart
		C.	directed graph	D.	pattern
		Hint
	2.	Using the directed graph, how many different routes are there to get from the Boston plant to the Worcester plant in exactly two transfers?
		A.	4	B.	1
		C.	2	D.	3
		Hint
	3.	Using the directed graph, what is the fewest number of transfers possible to get from the Fitchburg plant to the Providence plant?
		A.	2	B.	0
		C.	1	D.	3
		Hint
	4.	To which city is there exactly one way in which supplies can be transferred directly from another city?
		A.	Lowell	B.	Providence
		C.	Worcester	D.	Boston
		Hint
	5.	Which city or cities are there exactly three ways in which supplies can be transferred from other cities?
		A.	Providence and Boston	B.	Worcester and Boston
		C.	Providence and Worcester	D.	Providence
		Hint